"There is NEVER an excuse for hitting children. One day our descendants will look back and wonder why anybody ever thought it was acceptable."
It is acceptable because the alternative is not acceptable, i.e. their being brats.
There are always acceptable reasons for hitting another person or animal. It reinforces the message and gets the person to listen and respect. I spank my dogs when they are bad. It is like using an electric fence to teach boundaries. And if someone does not like being hit, the don't allow it, use defense measures. Use offense measures to return the fire. Don't act like the hitter is always bad and the hitted is always a victim. The person is only a victim if they allow it. If it is bad then it should be stopped at that moment by the person declaring it bad. it is like saying that JWs were victims of Nazi persecution. No. The JWs allowed it. They could have fought back.